IntelÂ® Fortran Libraries Reference

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1 Intel Fortran Libraries ReferenceTable 1-1NameSummary of Portability RoutinesDescriptionFPUTCWrites a character to an external unit.FSEEKRepositions a file on an external unit.FTELL, FTELLI8Return the offset, in bytes, from the beginning of the file.GETC Reads a character from unit 5.GETPOS, GETPOSI8Return the offset, in bytes, from the beginning of the file.PUTC Writes a character to unit 6.Date and Time:CLOCKReturns current time in "hh:mm:ss" format using a 24-hour clock.CLOCKXReturns the processor clock to the nearest microsecond.CTIMEConverts a system time to a 24-character ASCII string.DATEReturns the current system date.DATE4Returns the current system date.DCLOCKReturns the elapsed time in seconds since the start of the current process.DTIMEReturns CPU time since later of (1) start of program, or (2) most recent callto DTIME.ETIMEReturns elapsed CPU time since the start of program execution.FDATEReturns the current date and time as an ASCII string.GETDATReturns the date.GETTIMReturns the time.GMTIMEReturns Greenwich Mean Time as a 9-element integer array.IDATEReturns the date either as one 3-element array or three scalar parameters(month, day, year).IDATE4Returns the date either as one 3-element array or three scalar parameters(month, day, year).ITIMEReturns current time as a 3-element array (hour, minute, second).JDATEReturns current date as an 8-character string with the Julian date.JDATE4Returns current date as a 10-character string with the Julian date.LTIMEReturns local time as a 9-element integer array.RTC Returns number of seconds since 00:00:00 GMT, Jan 1, 1970.SECNDSReturns number of seconds since midnight, less the value of its argument.SETDATSets the date.SETTIMSets the time.1-4
Overview of the Libraries 1Table 1-1NameTIMETIMEFError Handling:GETLASTERRORGETLASTERRORQQIERRNOSETERRORMODEQQProgram Call and Control:RAISEQQAs a subroutine, returns time formatted as HH:MM:SS; as a function,returns time in seconds since 00:00:00 GMT, Jan 1, 1970.Returns the number of seconds since the first time this function was called(or zero).Returns the last error set.Returns the last error set by a run-time function or subroutine.Returns the last code error.Sets the mode for handling critical errors.Sends an interrupt to the executing program, simulating an interrupt fromthe operating system.Calls another program and waits for it to execute.Controls signal handling.Delays execution of the program for a specified time.RUNQQSIGNALQQSLEEPQQSystem, Drive, or Directory Control and Inquiry:CHDIRChanges the current working directory.CHANGEDIRQQMakes the specified directory the current (default) directory.CHANGEDRIVEQQMakes the specified drive the current drive.DELDIRQQDeletes a specified directory.GETDRIVEDIRQQReturns the current drive and directory path.GETDRIVESIZEQQReturns the size of the specified drive.GETDRIVESQQReturns the drives available to the system.GETENVQQReturns a value from the current environment.MAKEDIRQQCreates a directory with the specified directory name.SETENVQQAdds a new environment variable or sets the value of an existing one.SYSTEMQQExecutes a command by passing a command string to the operatingsystem's command interpreter.Speakers:BEEPQQSummary of Portability RoutinesDescriptionSounds the speaker for a specified duration in milliseconds at a specifiedfrequency in Hertz.1-5
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